This capability can be utilized to construct defined microenvironments for attaching live single cells and subsequently investigating cellular responses. Single cells can be exposed to different external stimuli (including biological, chemical and topographical stimuli) and the downstream effects of these stimuli can be monitored at the cellular, proteomic or genomic levels. Limited or rare cells can potentially be exposed to many conditions. This new contract services program will enable researchers to engage NanoInk to design, develop and construct custom single cell assays.